Electric switch.



No. 630,076. Patented Aug. I, 1899.

' J. E. SAYLES & H. E. REEV'E.

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(Application filed Mar. 26, 1898.) (No Model.) 2 Sheets-Sheet I.

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No. 630,076. Patented Aug. I, I899. J. E. SAYLES &. H. E. BEEVE.

ELECTRIC SWITCH.

(Application filed Mar. 26, 1898.) (No Model.) 2'Sheets$heet 2.

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UNITED STATES PATENT OFFICE.

JOHN E. SAYLES, OF MON'lOLAIR, NElV JERSEY, AND HENRY OF NEW YORK, N. Y.

ELECTRIC SWITCH.

SPECIFICATION forming part of Letters Patent No. 630,076, dated August 1, 1899. Application filed March 26, 1898. Serial No. 675,219. (No model.)

T at whom, it may concern:

Be it known that we, JOHN E. SA'YLES, residing in Montclair, in the county of Essex and State of New Jersey, and HENRY E. REEVE,

residing in the borough of Brooklyn, in the city and State of New York, citizens of the United States, haveinvented certain new and useful Improvements in Electric Switches, of which the following is a specification, referro ence being had to the accompanying drawings, forming a part hereof.

This invention relates to current-controlling devices, such as are commonly employed in many difierent forms of electrical appa- I 5 ratus, and more especially to those in which a number of contacts are required; and it has for its object to produce a light and wellventilated switching device which shall be of very low cost of manufacture and yet thorzo oughly efiicient, reliable, and durable.

The invention is illustrated in the accompanyin g drawings as embodied in a resistance device; but it will be understood that it is equally capable of application to other de- 2 5 vices and for other purposes.

In said drawings, Figure 1 is a plan view of such a resistance device to which the invention is applied. Fig. 2 is an under side view of the same. Fig. 3 is a front elevation there- 0 of. Fig. 4 is a vertical section on the irregular plane indicated by the line at at of Fig. 1. Figs. 5 and 6 are detail views in section on the planes indicated by the lines 5 5 and 6 6, respectively, of Fig. l.

3 5 The invention is concerned mainly with the base A, which has heretofore been made usually of cast metal, thereby entailing considerable expense not onlyin the making of the base, but in the finishing and fitting thereof,

but in the present case is made of sheet metal and can therefore be stamped up at one operation and therefore produced at a minimum of expense. Flanges a a are formed on the base to give stiifness, and holes or notches a a may be provided for convenience in the attachment of the device to its-foundation. In the central portion of the base-plate A is an opening (1 which affords sufiicient room for the contacts carried by the insulatingblock B and permits the free circulation of air. For the purpose of determining the exact position of the insulating-block B and of centering it, so that the parts can be assembled with the least labor, lugs a are struck up from the base-plate A to receive between them the ends of the insulating-block.

A boss (1 is also struck up from the plate to form a suitable bearing upon which the switch-lever O can be pivoted, the boss leaving the necessary clearance between the lever and the plate to be secured readily.

As the insulating-block B is centered and held from lateral displacement by the lugs a above referred to, it becomes possible to dispense with additional screws or other devices for securing the block to the base or plate and to rely for that purpose upon the binding-posts I) Z), which pass through holes a of larger diameter in the plate A and are insulated therefrom by Washers b in the usual manner. Nuts 19 may be employed, as usual, to secure the binding-posts in position. Other contacts 5 may be carried upon the insulating-block B, as usual, being represented as secured by nuts Z). The switch 0 is represented 7 5 as having one tongue 0 for contact with the contacts 19 and another tongue 0' for contact with a bar 79 which is likewise secured to the block B and is included in the electric circuit.

An ordinary resistance-tube D is repre- 8o sented as mounted upon the base-plate A, being secured in position thereon by suitable fastenings d, which engage flanges d of the tube. The several contacts 12 are represented as connected as usual to the resistance-tube at dilferent points. The mode of use of the particular structure shown and described herein for the purpose of throwing more or less resistance into a circuit will be readily understood without further explanation herein. It will also be evident that the improved switch, whether designed for the particular purpose herein referred to or for some other purpose, can be produced at very small expense, especially by reason of the fact that 5 the base-plate A can be formed ready for use with a minimum of labor and that the assembling of the parts can be effected with the least possible amount of labor. Moreover, although the device is of very little weight lating-block having contacts thereon, binding-posts mounted on said block and passing through the holes in said base, said holes being of larger diameter than said binding-posts, whereby said binding-posts serve as electric conductors and also to secure said block to said base, and a switclrlever pivoted upon said base, substantially as shown and described. This specification signed and witnessed this ZJCth day of March, A. D. 1898.

JNO. E. SAYLES.

HENRY E. REEVE.

In presence of W. B. GREELEY, A. N. JESBERA. 

